From c62eef0d1b592cfbe4793173e8af4098b13e4455 Mon Sep 17 00:00:00 2001 From: John Soni Jose Date: Tue, 3 Apr 2012 23:41:52 -0500 Subject: [PATCH] [SCSI] be2iscsi: Get Port State and Speed of the Adapter Implement ISCSI_HOST_PARAM_PORT_STATE and ISCSI_HOST_PARAM_PORT_SPEED to get the Adapter port state and port name Signed-off-by: John Soni Jose Signed-off-by: Jayamohan Kallickal Signed-off-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/be2iscsi/be_cmds.h | 24 +++++++++ drivers/scsi/be2iscsi/be_iscsi.c | 89 ++++++++++++++++++++++++++++++++ drivers/scsi/be2iscsi/be_mgmt.c | 27 ++++++++++ 3 files changed, 140 insertions(+) diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h index 60d144550f76..b0b36c6a145f 100644 --- a/drivers/scsi/be2iscsi/be_cmds.h +++ b/drivers/scsi/be2iscsi/be_cmds.h @@ -596,6 +596,28 @@ struct be_cmd_hba_name { u8 initiator_alias[BEISCSI_ALIAS_LEN]; } __packed; +struct be_cmd_ntwk_link_status_req { + struct be_cmd_req_hdr hdr; + u32 rsvd0; +} __packed; + +/*** Port Speed Values ***/ +#define BE2ISCSI_LINK_SPEED_ZERO 0x00 +#define BE2ISCSI_LINK_SPEED_10MBPS 0x01 +#define BE2ISCSI_LINK_SPEED_100MBPS 0x02 +#define BE2ISCSI_LINK_SPEED_1GBPS 0x03 +#define BE2ISCSI_LINK_SPEED_10GBPS 0x04 +struct be_cmd_ntwk_link_status_resp { + struct be_cmd_resp_hdr hdr; + u8 phys_port; + u8 mac_duplex; + u8 mac_speed; + u8 mac_fault; + u8 mgmt_mac_duplex; + u8 mgmt_mac_speed; + u16 qos_link_speed; + u32 logical_link_speed; +} __packed; int beiscsi_cmd_eq_create(struct be_ctrl_info *ctrl, struct be_queue_info *eq, int eq_delay); @@ -615,6 +637,7 @@ int be_poll_mcc(struct be_ctrl_info *ctrl); int mgmt_check_supported_fw(struct be_ctrl_info *ctrl, struct beiscsi_hba *phba); unsigned int be_cmd_get_initname(struct beiscsi_hba *phba); +unsigned int be_cmd_get_port_speed(struct beiscsi_hba *phba); void free_mcc_tag(struct be_ctrl_info *ctrl, unsigned int tag); /*ISCSI Functuions */ @@ -879,6 +902,7 @@ struct be_cmd_get_all_if_id_req { } __packed; #define ISCSI_OPCODE_SCSI_DATA_OUT 5 +#define OPCODE_COMMON_NTWK_LINK_STATUS_QUERY 5 #define OPCODE_COMMON_MODIFY_EQ_DELAY 41 #define OPCODE_COMMON_ISCSI_CLEANUP 59 #define OPCODE_COMMON_TCP_UPLOAD 56 diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c index 46cc40e83b36..43f35034585d 100644 --- a/drivers/scsi/be2iscsi/be_iscsi.c +++ b/drivers/scsi/be2iscsi/be_iscsi.c @@ -617,6 +617,79 @@ static int beiscsi_get_initname(char *buf, struct beiscsi_hba *phba) return rc; } +/** + * beiscsi_get_port_state - Get the Port State + * @shost : pointer to scsi_host structure + * + * returns number of bytes + */ +static void beiscsi_get_port_state(struct Scsi_Host *shost) +{ + struct beiscsi_hba *phba = iscsi_host_priv(shost); + struct iscsi_cls_host *ihost = shost->shost_data; + + ihost->port_state = (phba->state == BE_ADAPTER_UP) ? + ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN; +} + +/** + * beiscsi_get_port_speed - Get the Port Speed from Adapter + * @shost : pointer to scsi_host structure + * + * returns Success/Failure + */ +static int beiscsi_get_port_speed(struct Scsi_Host *shost) +{ + unsigned int tag, wrb_num; + unsigned short status, extd_status; + struct be_mcc_wrb *wrb; + struct be_cmd_ntwk_link_status_resp *resp; + struct beiscsi_hba *phba = iscsi_host_priv(shost); + struct iscsi_cls_host *ihost = shost->shost_data; + struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q; + + tag = be_cmd_get_port_speed(phba); + if (!tag) { + SE_DEBUG(DBG_LVL_1, "Getting Port Speed Failed\n"); + return -EBUSY; + } else + wait_event_interruptible(phba->ctrl.mcc_wait[tag], + phba->ctrl.mcc_numtag[tag]); + + wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16; + extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8; + status = phba->ctrl.mcc_numtag[tag] & 0x000000FF; + + if (status || extd_status) { + SE_DEBUG(DBG_LVL_1, "MailBox Command Failed with " + "status = %d extd_status = %d\n", + status, extd_status); + free_mcc_tag(&phba->ctrl, tag); + return -EAGAIN; + } + wrb = queue_get_wrb(mccq, wrb_num); + free_mcc_tag(&phba->ctrl, tag); + resp = embedded_payload(wrb); + + switch (resp->mac_speed) { + case BE2ISCSI_LINK_SPEED_10MBPS: + ihost->port_speed = ISCSI_PORT_SPEED_10MBPS; + break; + case BE2ISCSI_LINK_SPEED_100MBPS: + ihost->port_speed = BE2ISCSI_LINK_SPEED_100MBPS; + break; + case BE2ISCSI_LINK_SPEED_1GBPS: + ihost->port_speed = ISCSI_PORT_SPEED_1GBPS; + break; + case BE2ISCSI_LINK_SPEED_10GBPS: + ihost->port_speed = ISCSI_PORT_SPEED_10GBPS; + break; + default: + ihost->port_speed = ISCSI_PORT_SPEED_UNKNOWN; + } + return 0; +} + /** * beiscsi_get_host_param - get the iscsi parameter * @shost: pointer to scsi_host structure @@ -648,6 +721,19 @@ int beiscsi_get_host_param(struct Scsi_Host *shost, return status; } break; + case ISCSI_HOST_PARAM_PORT_STATE: + beiscsi_get_port_state(shost); + status = sprintf(buf, "%s\n", iscsi_get_port_state_name(shost)); + break; + case ISCSI_HOST_PARAM_PORT_SPEED: + status = beiscsi_get_port_speed(shost); + if (status) { + SE_DEBUG(DBG_LVL_1, + "Retreiving Port Speed Failed\n"); + return status; + } + status = sprintf(buf, "%s\n", iscsi_get_port_speed_name(shost)); + break; default: return iscsi_host_get_param(shost, param, buf); } @@ -1073,6 +1159,9 @@ umode_t be2iscsi_attr_is_visible(int param_type, int param) case ISCSI_HOST_PARAM: switch (param) { case ISCSI_HOST_PARAM_HWADDRESS: + case ISCSI_HOST_PARAM_INITIATOR_NAME: + case ISCSI_HOST_PARAM_PORT_STATE: + case ISCSI_HOST_PARAM_PORT_SPEED: return S_IRUGO; default: return 0; diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c index e6cb10d2e74e..01bb04cd9e75 100644 --- a/drivers/scsi/be2iscsi/be_mgmt.c +++ b/drivers/scsi/be2iscsi/be_mgmt.c @@ -898,3 +898,30 @@ unsigned int be_cmd_get_initname(struct beiscsi_hba *phba) spin_unlock(&ctrl->mbox_lock); return tag; } + +unsigned int be_cmd_get_port_speed(struct beiscsi_hba *phba) +{ + unsigned int tag = 0; + struct be_mcc_wrb *wrb; + struct be_cmd_ntwk_link_status_req *req; + struct be_ctrl_info *ctrl = &phba->ctrl; + + spin_lock(&ctrl->mbox_lock); + tag = alloc_mcc_tag(phba); + if (!tag) { + spin_unlock(&ctrl->mbox_lock); + return tag; + } + + wrb = wrb_from_mccq(phba); + req = embedded_payload(wrb); + wrb->tag0 |= tag; + be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0); + be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON, + OPCODE_COMMON_NTWK_LINK_STATUS_QUERY, + sizeof(*req)); + + be_mcc_notify(phba); + spin_unlock(&ctrl->mbox_lock); + return tag; +} -- 2.20.1